+++ /dev/null
-/*
- * Tiny Code Generator for QEMU
- *
- * Copyright (c) 2008 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "tcg-be-ldst.h"
-
-#if defined _CALL_DARWIN || defined __APPLE__
-#define TCG_TARGET_CALL_DARWIN
-#endif
-#ifdef _CALL_SYSV
-# define TCG_TARGET_CALL_ALIGN_ARGS 1
-#endif
-
-/* For some memory operations, we need a scratch that isn't R0. For the AIX
- calling convention, we can re-use the TOC register since we'll be reloading
- it at every call. Otherwise R12 will do nicely as neither a call-saved
- register nor a parameter register. */
-#ifdef _CALL_AIX
-# define TCG_REG_TMP1 TCG_REG_R2
-#else
-# define TCG_REG_TMP1 TCG_REG_R12
-#endif
-
-/* For the 64-bit target, we don't like the 5 insn sequence needed to build
- full 64-bit addresses. Better to have a base register to which we can
- apply a 32-bit displacement.
-
- There are generally three items of interest:
- (1) helper functions in the main executable,
- (2) TranslationBlock data structures,
- (3) the return address in the epilogue.
-
- For user-only, we USE_STATIC_CODE_GEN_BUFFER, so the code_gen_buffer
- will be inside the main executable, and thus near enough to make a
- pointer to the epilogue be within 2GB of all helper functions.
-
- For softmmu, we'll let the kernel choose the address of code_gen_buffer,
- and odds are it'll be somewhere close to the main malloc arena, and so
- a pointer to the epilogue will be within 2GB of the TranslationBlocks.
-
- For --enable-pie, everything will be kinda near everything else,
- somewhere in high memory.
-
- Thus we choose to keep the return address in a call-saved register. */
-#define TCG_REG_RA TCG_REG_R31
-#define USE_REG_RA (TCG_TARGET_REG_BITS == 64)
-
-/* Shorthand for size of a pointer. Avoid promotion to unsigned. */
-#define SZP ((int)sizeof(void *))
-
-/* Shorthand for size of a register. */
-#define SZR (TCG_TARGET_REG_BITS / 8)
-
-#define TCG_CT_CONST_S16 0x100
-#define TCG_CT_CONST_U16 0x200
-#define TCG_CT_CONST_S32 0x400
-#define TCG_CT_CONST_U32 0x800
-#define TCG_CT_CONST_ZERO 0x1000
-#define TCG_CT_CONST_MONE 0x2000
-
-static tcg_insn_unit *tb_ret_addr;
-
-#ifndef GUEST_BASE
-#define GUEST_BASE 0
-#endif
-
-#include "elf.h"
-static bool have_isa_2_06;
-#define HAVE_ISA_2_06 have_isa_2_06
-#define HAVE_ISEL have_isa_2_06
-
-#ifdef CONFIG_USE_GUEST_BASE
-#define TCG_GUEST_BASE_REG 30
-#else
-#define TCG_GUEST_BASE_REG 0
-#endif
-
-#ifndef NDEBUG
-static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
- "r0",
- "r1",
- "r2",
- "r3",
- "r4",
- "r5",
- "r6",
- "r7",
- "r8",
- "r9",
- "r10",
- "r11",
- "r12",
- "r13",
- "r14",
- "r15",
- "r16",
- "r17",
- "r18",
- "r19",
- "r20",
- "r21",
- "r22",
- "r23",
- "r24",
- "r25",
- "r26",
- "r27",
- "r28",
- "r29",
- "r30",
- "r31"
-};
-#endif
-
-static const int tcg_target_reg_alloc_order[] = {
- TCG_REG_R14, /* call saved registers */
- TCG_REG_R15,
- TCG_REG_R16,
- TCG_REG_R17,
- TCG_REG_R18,
- TCG_REG_R19,
- TCG_REG_R20,
- TCG_REG_R21,
- TCG_REG_R22,
- TCG_REG_R23,
- TCG_REG_R24,
- TCG_REG_R25,
- TCG_REG_R26,
- TCG_REG_R27,
- TCG_REG_R28,
- TCG_REG_R29,
- TCG_REG_R30,
- TCG_REG_R31,
- TCG_REG_R12, /* call clobbered, non-arguments */
- TCG_REG_R11,
- TCG_REG_R2,
- TCG_REG_R13,
- TCG_REG_R10, /* call clobbered, arguments */
- TCG_REG_R9,
- TCG_REG_R8,
- TCG_REG_R7,
- TCG_REG_R6,
- TCG_REG_R5,
- TCG_REG_R4,
- TCG_REG_R3,
-};
-
-static const int tcg_target_call_iarg_regs[] = {
- TCG_REG_R3,
- TCG_REG_R4,
- TCG_REG_R5,
- TCG_REG_R6,
- TCG_REG_R7,
- TCG_REG_R8,
- TCG_REG_R9,
- TCG_REG_R10
-};
-
-static const int tcg_target_call_oarg_regs[] = {
- TCG_REG_R3,
- TCG_REG_R4
-};
-
-static const int tcg_target_callee_save_regs[] = {
-#ifdef TCG_TARGET_CALL_DARWIN
- TCG_REG_R11,
-#endif
- TCG_REG_R14,
- TCG_REG_R15,
- TCG_REG_R16,
- TCG_REG_R17,
- TCG_REG_R18,
- TCG_REG_R19,
- TCG_REG_R20,
- TCG_REG_R21,
- TCG_REG_R22,
- TCG_REG_R23,
- TCG_REG_R24,
- TCG_REG_R25,
- TCG_REG_R26,
- TCG_REG_R27, /* currently used for the global env */
- TCG_REG_R28,
- TCG_REG_R29,
- TCG_REG_R30,
- TCG_REG_R31
-};
-
-static inline bool in_range_b(tcg_target_long target)
-{
- return target == sextract64(target, 0, 26);
-}
-
-static uint32_t reloc_pc24_val(tcg_insn_unit *pc, tcg_insn_unit *target)
-{
- ptrdiff_t disp = tcg_ptr_byte_diff(target, pc);
- assert(in_range_b(disp));
- return disp & 0x3fffffc;
-}
-
-static void reloc_pc24(tcg_insn_unit *pc, tcg_insn_unit *target)
-{
- *pc = (*pc & ~0x3fffffc) | reloc_pc24_val(pc, target);
-}
-
-static uint16_t reloc_pc14_val(tcg_insn_unit *pc, tcg_insn_unit *target)
-{
- ptrdiff_t disp = tcg_ptr_byte_diff(target, pc);
- assert(disp == (int16_t) disp);
- return disp & 0xfffc;
-}
-
-static void reloc_pc14(tcg_insn_unit *pc, tcg_insn_unit *target)
-{
- *pc = (*pc & ~0xfffc) | reloc_pc14_val(pc, target);
-}
-
-static inline void tcg_out_b_noaddr(TCGContext *s, int insn)
-{
- unsigned retrans = *s->code_ptr & 0x3fffffc;
- tcg_out32(s, insn | retrans);
-}
-
-static inline void tcg_out_bc_noaddr(TCGContext *s, int insn)
-{
- unsigned retrans = *s->code_ptr & 0xfffc;
- tcg_out32(s, insn | retrans);
-}
-
-static void patch_reloc(tcg_insn_unit *code_ptr, int type,
- intptr_t value, intptr_t addend)
-{
- tcg_insn_unit *target = (tcg_insn_unit *)value;
-
- assert(addend == 0);
- switch (type) {
- case R_PPC_REL14:
- reloc_pc14(code_ptr, target);
- break;
- case R_PPC_REL24:
- reloc_pc24(code_ptr, target);
- break;
- default:
- tcg_abort();
- }
-}
-
-/* parse target specific constraints */
-static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
-{
- const char *ct_str;
-
- ct_str = *pct_str;
- switch (ct_str[0]) {
- case 'A': case 'B': case 'C': case 'D':
- ct->ct |= TCG_CT_REG;
- tcg_regset_set_reg(ct->u.regs, 3 + ct_str[0] - 'A');
- break;
- case 'r':
- ct->ct |= TCG_CT_REG;
- tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
- break;
- case 'L': /* qemu_ld constraint */
- ct->ct |= TCG_CT_REG;
- tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
-#ifdef CONFIG_SOFTMMU
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
-#endif
- break;
- case 'S': /* qemu_st constraint */
- ct->ct |= TCG_CT_REG;
- tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
-#ifdef CONFIG_SOFTMMU
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R6);
-#endif
- break;
- case 'I':
- ct->ct |= TCG_CT_CONST_S16;
- break;
- case 'J':
- ct->ct |= TCG_CT_CONST_U16;
- break;
- case 'M':
- ct->ct |= TCG_CT_CONST_MONE;
- break;
- case 'T':
- ct->ct |= TCG_CT_CONST_S32;
- break;
- case 'U':
- ct->ct |= TCG_CT_CONST_U32;
- break;
- case 'Z':
- ct->ct |= TCG_CT_CONST_ZERO;
- break;
- default:
- return -1;
- }
- ct_str++;
- *pct_str = ct_str;
- return 0;
-}
-
-/* test if a constant matches the constraint */
-static int tcg_target_const_match(tcg_target_long val, TCGType type,
- const TCGArgConstraint *arg_ct)
-{
- int ct = arg_ct->ct;
- if (ct & TCG_CT_CONST) {
- return 1;
- }
-
- /* The only 32-bit constraint we use aside from
- TCG_CT_CONST is TCG_CT_CONST_S16. */
- if (type == TCG_TYPE_I32) {
- val = (int32_t)val;
- }
-
- if ((ct & TCG_CT_CONST_S16) && val == (int16_t)val) {
- return 1;
- } else if ((ct & TCG_CT_CONST_U16) && val == (uint16_t)val) {
- return 1;
- } else if ((ct & TCG_CT_CONST_S32) && val == (int32_t)val) {
- return 1;
- } else if ((ct & TCG_CT_CONST_U32) && val == (uint32_t)val) {
- return 1;
- } else if ((ct & TCG_CT_CONST_ZERO) && val == 0) {
- return 1;
- } else if ((ct & TCG_CT_CONST_MONE) && val == -1) {
- return 1;
- }
- return 0;
-}
-
-#define OPCD(opc) ((opc)<<26)
-#define XO19(opc) (OPCD(19)|((opc)<<1))
-#define MD30(opc) (OPCD(30)|((opc)<<2))
-#define MDS30(opc) (OPCD(30)|((opc)<<1))
-#define XO31(opc) (OPCD(31)|((opc)<<1))
-#define XO58(opc) (OPCD(58)|(opc))
-#define XO62(opc) (OPCD(62)|(opc))
-
-#define B OPCD( 18)
-#define BC OPCD( 16)
-#define LBZ OPCD( 34)
-#define LHZ OPCD( 40)
-#define LHA OPCD( 42)
-#define LWZ OPCD( 32)
-#define STB OPCD( 38)
-#define STH OPCD( 44)
-#define STW OPCD( 36)
-
-#define STD XO62( 0)
-#define STDU XO62( 1)
-#define STDX XO31(149)
-
-#define LD XO58( 0)
-#define LDX XO31( 21)
-#define LDU XO58( 1)
-#define LWA XO58( 2)
-#define LWAX XO31(341)
-
-#define ADDIC OPCD( 12)
-#define ADDI OPCD( 14)
-#define ADDIS OPCD( 15)
-#define ORI OPCD( 24)
-#define ORIS OPCD( 25)
-#define XORI OPCD( 26)
-#define XORIS OPCD( 27)
-#define ANDI OPCD( 28)
-#define ANDIS OPCD( 29)
-#define MULLI OPCD( 7)
-#define CMPLI OPCD( 10)
-#define CMPI OPCD( 11)
-#define SUBFIC OPCD( 8)
-
-#define LWZU OPCD( 33)
-#define STWU OPCD( 37)
-
-#define RLWIMI OPCD( 20)
-#define RLWINM OPCD( 21)
-#define RLWNM OPCD( 23)
-
-#define RLDICL MD30( 0)
-#define RLDICR MD30( 1)
-#define RLDIMI MD30( 3)
-#define RLDCL MDS30( 8)
-
-#define BCLR XO19( 16)
-#define BCCTR XO19(528)
-#define CRAND XO19(257)
-#define CRANDC XO19(129)
-#define CRNAND XO19(225)
-#define CROR XO19(449)
-#define CRNOR XO19( 33)
-
-#define EXTSB XO31(954)
-#define EXTSH XO31(922)
-#define EXTSW XO31(986)
-#define ADD XO31(266)
-#define ADDE XO31(138)
-#define ADDME XO31(234)
-#define ADDZE XO31(202)
-#define ADDC XO31( 10)
-#define AND XO31( 28)
-#define SUBF XO31( 40)
-#define SUBFC XO31( 8)
-#define SUBFE XO31(136)
-#define SUBFME XO31(232)
-#define SUBFZE XO31(200)
-#define OR XO31(444)
-#define XOR XO31(316)
-#define MULLW XO31(235)
-#define MULHW XO31( 75)
-#define MULHWU XO31( 11)
-#define DIVW XO31(491)
-#define DIVWU XO31(459)
-#define CMP XO31( 0)
-#define CMPL XO31( 32)
-#define LHBRX XO31(790)
-#define LWBRX XO31(534)
-#define LDBRX XO31(532)
-#define STHBRX XO31(918)
-#define STWBRX XO31(662)
-#define STDBRX XO31(660)
-#define MFSPR XO31(339)
-#define MTSPR XO31(467)
-#define SRAWI XO31(824)
-#define NEG XO31(104)
-#define MFCR XO31( 19)
-#define MFOCRF (MFCR | (1u << 20))
-#define NOR XO31(124)
-#define CNTLZW XO31( 26)
-#define CNTLZD XO31( 58)
-#define ANDC XO31( 60)
-#define ORC XO31(412)
-#define EQV XO31(284)
-#define NAND XO31(476)
-#define ISEL XO31( 15)
-
-#define MULLD XO31(233)
-#define MULHD XO31( 73)
-#define MULHDU XO31( 9)
-#define DIVD XO31(489)
-#define DIVDU XO31(457)
-
-#define LBZX XO31( 87)
-#define LHZX XO31(279)
-#define LHAX XO31(343)
-#define LWZX XO31( 23)
-#define STBX XO31(215)
-#define STHX XO31(407)
-#define STWX XO31(151)
-
-#define SPR(a, b) ((((a)<<5)|(b))<<11)
-#define LR SPR(8, 0)
-#define CTR SPR(9, 0)
-
-#define SLW XO31( 24)
-#define SRW XO31(536)
-#define SRAW XO31(792)
-
-#define SLD XO31( 27)
-#define SRD XO31(539)
-#define SRAD XO31(794)
-#define SRADI XO31(413<<1)
-
-#define TW XO31( 4)
-#define TRAP (TW | TO(31))
-
-#define NOP ORI /* ori 0,0,0 */
-
-#define RT(r) ((r)<<21)
-#define RS(r) ((r)<<21)
-#define RA(r) ((r)<<16)
-#define RB(r) ((r)<<11)
-#define TO(t) ((t)<<21)
-#define SH(s) ((s)<<11)
-#define MB(b) ((b)<<6)
-#define ME(e) ((e)<<1)
-#define BO(o) ((o)<<21)
-#define MB64(b) ((b)<<5)
-#define FXM(b) (1 << (19 - (b)))
-
-#define LK 1
-
-#define TAB(t, a, b) (RT(t) | RA(a) | RB(b))
-#define SAB(s, a, b) (RS(s) | RA(a) | RB(b))
-#define TAI(s, a, i) (RT(s) | RA(a) | ((i) & 0xffff))
-#define SAI(s, a, i) (RS(s) | RA(a) | ((i) & 0xffff))
-
-#define BF(n) ((n)<<23)
-#define BI(n, c) (((c)+((n)*4))<<16)
-#define BT(n, c) (((c)+((n)*4))<<21)
-#define BA(n, c) (((c)+((n)*4))<<16)
-#define BB(n, c) (((c)+((n)*4))<<11)
-#define BC_(n, c) (((c)+((n)*4))<<6)
-
-#define BO_COND_TRUE BO(12)
-#define BO_COND_FALSE BO( 4)
-#define BO_ALWAYS BO(20)
-
-enum {
- CR_LT,
- CR_GT,
- CR_EQ,
- CR_SO
-};
-
-static const uint32_t tcg_to_bc[] = {
- [TCG_COND_EQ] = BC | BI(7, CR_EQ) | BO_COND_TRUE,
- [TCG_COND_NE] = BC | BI(7, CR_EQ) | BO_COND_FALSE,
- [TCG_COND_LT] = BC | BI(7, CR_LT) | BO_COND_TRUE,
- [TCG_COND_GE] = BC | BI(7, CR_LT) | BO_COND_FALSE,
- [TCG_COND_LE] = BC | BI(7, CR_GT) | BO_COND_FALSE,
- [TCG_COND_GT] = BC | BI(7, CR_GT) | BO_COND_TRUE,
- [TCG_COND_LTU] = BC | BI(7, CR_LT) | BO_COND_TRUE,
- [TCG_COND_GEU] = BC | BI(7, CR_LT) | BO_COND_FALSE,
- [TCG_COND_LEU] = BC | BI(7, CR_GT) | BO_COND_FALSE,
- [TCG_COND_GTU] = BC | BI(7, CR_GT) | BO_COND_TRUE,
-};
-
-/* The low bit here is set if the RA and RB fields must be inverted. */
-static const uint32_t tcg_to_isel[] = {
- [TCG_COND_EQ] = ISEL | BC_(7, CR_EQ),
- [TCG_COND_NE] = ISEL | BC_(7, CR_EQ) | 1,
- [TCG_COND_LT] = ISEL | BC_(7, CR_LT),
- [TCG_COND_GE] = ISEL | BC_(7, CR_LT) | 1,
- [TCG_COND_LE] = ISEL | BC_(7, CR_GT) | 1,
- [TCG_COND_GT] = ISEL | BC_(7, CR_GT),
- [TCG_COND_LTU] = ISEL | BC_(7, CR_LT),
- [TCG_COND_GEU] = ISEL | BC_(7, CR_LT) | 1,
- [TCG_COND_LEU] = ISEL | BC_(7, CR_GT) | 1,
- [TCG_COND_GTU] = ISEL | BC_(7, CR_GT),
-};
-
-static void tcg_out_mem_long(TCGContext *s, int opi, int opx, TCGReg rt,
- TCGReg base, tcg_target_long offset);
-
-static void tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
-{
- tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32);
- if (ret != arg) {
- tcg_out32(s, OR | SAB(arg, ret, arg));
- }
-}
-
-static inline void tcg_out_rld(TCGContext *s, int op, TCGReg ra, TCGReg rs,
- int sh, int mb)
-{
- assert(TCG_TARGET_REG_BITS == 64);
- sh = SH(sh & 0x1f) | (((sh >> 5) & 1) << 1);
- mb = MB64((mb >> 5) | ((mb << 1) & 0x3f));
- tcg_out32(s, op | RA(ra) | RS(rs) | sh | mb);
-}
-
-static inline void tcg_out_rlw(TCGContext *s, int op, TCGReg ra, TCGReg rs,
- int sh, int mb, int me)
-{
- tcg_out32(s, op | RA(ra) | RS(rs) | SH(sh) | MB(mb) | ME(me));
-}
-
-static inline void tcg_out_ext32u(TCGContext *s, TCGReg dst, TCGReg src)
-{
- tcg_out_rld(s, RLDICL, dst, src, 0, 32);
-}
-
-static inline void tcg_out_shli32(TCGContext *s, TCGReg dst, TCGReg src, int c)
-{
- tcg_out_rlw(s, RLWINM, dst, src, c, 0, 31 - c);
-}
-
-static inline void tcg_out_shli64(TCGContext *s, TCGReg dst, TCGReg src, int c)
-{
- tcg_out_rld(s, RLDICR, dst, src, c, 63 - c);
-}
-
-static inline void tcg_out_shri32(TCGContext *s, TCGReg dst, TCGReg src, int c)
-{
- tcg_out_rlw(s, RLWINM, dst, src, 32 - c, c, 31);
-}
-
-static inline void tcg_out_shri64(TCGContext *s, TCGReg dst, TCGReg src, int c)
-{
- tcg_out_rld(s, RLDICL, dst, src, 64 - c, c);
-}
-
-static void tcg_out_movi32(TCGContext *s, TCGReg ret, int32_t arg)
-{
- if (arg == (int16_t) arg) {
- tcg_out32(s, ADDI | TAI(ret, 0, arg));
- } else {
- tcg_out32(s, ADDIS | TAI(ret, 0, arg >> 16));
- if (arg & 0xffff) {
- tcg_out32(s, ORI | SAI(ret, ret, arg));
- }
- }
-}
-
-static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg ret,
- tcg_target_long arg)
-{
- tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32);
- if (type == TCG_TYPE_I32 || arg == (int32_t)arg) {
- tcg_out_movi32(s, ret, arg);
- } else if (arg == (uint32_t)arg && !(arg & 0x8000)) {
- tcg_out32(s, ADDI | TAI(ret, 0, arg));
- tcg_out32(s, ORIS | SAI(ret, ret, arg >> 16));
- } else {
- int32_t high;
-
- if (USE_REG_RA) {
- intptr_t diff = arg - (intptr_t)tb_ret_addr;
- if (diff == (int32_t)diff) {
- tcg_out_mem_long(s, ADDI, ADD, ret, TCG_REG_RA, diff);
- return;
- }
- }
-
- high = arg >> 31 >> 1;
- tcg_out_movi32(s, ret, high);
- if (high) {
- tcg_out_shli64(s, ret, ret, 32);
- }
- if (arg & 0xffff0000) {
- tcg_out32(s, ORIS | SAI(ret, ret, arg >> 16));
- }
- if (arg & 0xffff) {
- tcg_out32(s, ORI | SAI(ret, ret, arg));
- }
- }
-}
-
-static bool mask_operand(uint32_t c, int *mb, int *me)
-{
- uint32_t lsb, test;
-
- /* Accept a bit pattern like:
- 0....01....1
- 1....10....0
- 0..01..10..0
- Keep track of the transitions. */
- if (c == 0 || c == -1) {
- return false;
- }
- test = c;
- lsb = test & -test;
- test += lsb;
- if (test & (test - 1)) {
- return false;
- }
-
- *me = clz32(lsb);
- *mb = test ? clz32(test & -test) + 1 : 0;
- return true;
-}
-
-static bool mask64_operand(uint64_t c, int *mb, int *me)
-{
- uint64_t lsb;
-
- if (c == 0) {
- return false;
- }
-
- lsb = c & -c;
- /* Accept 1..10..0. */
- if (c == -lsb) {
- *mb = 0;
- *me = clz64(lsb);
- return true;
- }
- /* Accept 0..01..1. */
- if (lsb == 1 && (c & (c + 1)) == 0) {
- *mb = clz64(c + 1) + 1;
- *me = 63;
- return true;
- }
- return false;
-}
-
-static void tcg_out_andi32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c)
-{
- int mb, me;
-
- if ((c & 0xffff) == c) {
- tcg_out32(s, ANDI | SAI(src, dst, c));
- return;
- } else if ((c & 0xffff0000) == c) {
- tcg_out32(s, ANDIS | SAI(src, dst, c >> 16));
- return;
- } else if (mask_operand(c, &mb, &me)) {
- tcg_out_rlw(s, RLWINM, dst, src, 0, mb, me);
- } else {
- tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R0, c);
- tcg_out32(s, AND | SAB(src, dst, TCG_REG_R0));
- }
-}
-
-static void tcg_out_andi64(TCGContext *s, TCGReg dst, TCGReg src, uint64_t c)
-{
- int mb, me;
-
- assert(TCG_TARGET_REG_BITS == 64);
- if ((c & 0xffff) == c) {
- tcg_out32(s, ANDI | SAI(src, dst, c));
- return;
- } else if ((c & 0xffff0000) == c) {
- tcg_out32(s, ANDIS | SAI(src, dst, c >> 16));
- return;
- } else if (mask64_operand(c, &mb, &me)) {
- if (mb == 0) {
- tcg_out_rld(s, RLDICR, dst, src, 0, me);
- } else {
- tcg_out_rld(s, RLDICL, dst, src, 0, mb);
- }
- } else {
- tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, c);
- tcg_out32(s, AND | SAB(src, dst, TCG_REG_R0));
- }
-}
-
-static void tcg_out_zori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c,
- int op_lo, int op_hi)
-{
- if (c >> 16) {
- tcg_out32(s, op_hi | SAI(src, dst, c >> 16));
- src = dst;
- }
- if (c & 0xffff) {
- tcg_out32(s, op_lo | SAI(src, dst, c));
- src = dst;
- }
-}
-
-static void tcg_out_ori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c)
-{
- tcg_out_zori32(s, dst, src, c, ORI, ORIS);
-}
-
-static void tcg_out_xori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c)
-{
- tcg_out_zori32(s, dst, src, c, XORI, XORIS);
-}
-
-static void tcg_out_b(TCGContext *s, int mask, tcg_insn_unit *target)
-{
- ptrdiff_t disp = tcg_pcrel_diff(s, target);
- if (in_range_b(disp)) {
- tcg_out32(s, B | (disp & 0x3fffffc) | mask);
- } else {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R0, (uintptr_t)target);
- tcg_out32(s, MTSPR | RS(TCG_REG_R0) | CTR);
- tcg_out32(s, BCCTR | BO_ALWAYS | mask);
- }
-}
-
-static void tcg_out_mem_long(TCGContext *s, int opi, int opx, TCGReg rt,
- TCGReg base, tcg_target_long offset)
-{
- tcg_target_long orig = offset, l0, l1, extra = 0, align = 0;
- bool is_store = false;
- TCGReg rs = TCG_REG_TMP1;
-
- switch (opi) {
- case LD: case LWA:
- align = 3;
- /* FALLTHRU */
- default:
- if (rt != TCG_REG_R0) {
- rs = rt;
- break;
- }
- break;
- case STD:
- align = 3;
- /* FALLTHRU */
- case STB: case STH: case STW:
- is_store = true;
- break;
- }
-
- /* For unaligned, or very large offsets, use the indexed form. */
- if (offset & align || offset != (int32_t)offset) {
- if (rs == base) {
- rs = TCG_REG_R0;
- }
- tcg_debug_assert(!is_store || rs != rt);
- tcg_out_movi(s, TCG_TYPE_PTR, rs, orig);
- tcg_out32(s, opx | TAB(rt, base, rs));
- return;
- }
-
- l0 = (int16_t)offset;
- offset = (offset - l0) >> 16;
- l1 = (int16_t)offset;
-
- if (l1 < 0 && orig >= 0) {
- extra = 0x4000;
- l1 = (int16_t)(offset - 0x4000);
- }
- if (l1) {
- tcg_out32(s, ADDIS | TAI(rs, base, l1));
- base = rs;
- }
- if (extra) {
- tcg_out32(s, ADDIS | TAI(rs, base, extra));
- base = rs;
- }
- if (opi != ADDI || base != rt || l0 != 0) {
- tcg_out32(s, opi | TAI(rt, base, l0));
- }
-}
-
-static inline void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret,
- TCGReg arg1, intptr_t arg2)
-{
- int opi, opx;
-
- assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32);
- if (type == TCG_TYPE_I32) {
- opi = LWZ, opx = LWZX;
- } else {
- opi = LD, opx = LDX;
- }
- tcg_out_mem_long(s, opi, opx, ret, arg1, arg2);
-}
-
-static inline void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg,
- TCGReg arg1, intptr_t arg2)
-{
- int opi, opx;
-
- assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32);
- if (type == TCG_TYPE_I32) {
- opi = STW, opx = STWX;
- } else {
- opi = STD, opx = STDX;
- }
- tcg_out_mem_long(s, opi, opx, arg, arg1, arg2);
-}
-
-static void tcg_out_cmp(TCGContext *s, int cond, TCGArg arg1, TCGArg arg2,
- int const_arg2, int cr, TCGType type)
-{
- int imm;
- uint32_t op;
-
- tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32);
-
- /* Simplify the comparisons below wrt CMPI. */
- if (type == TCG_TYPE_I32) {
- arg2 = (int32_t)arg2;
- }
-
- switch (cond) {
- case TCG_COND_EQ:
- case TCG_COND_NE:
- if (const_arg2) {
- if ((int16_t) arg2 == arg2) {
- op = CMPI;
- imm = 1;
- break;
- } else if ((uint16_t) arg2 == arg2) {
- op = CMPLI;
- imm = 1;
- break;
- }
- }
- op = CMPL;
- imm = 0;
- break;
-
- case TCG_COND_LT:
- case TCG_COND_GE:
- case TCG_COND_LE:
- case TCG_COND_GT:
- if (const_arg2) {
- if ((int16_t) arg2 == arg2) {
- op = CMPI;
- imm = 1;
- break;
- }
- }
- op = CMP;
- imm = 0;
- break;
-
- case TCG_COND_LTU:
- case TCG_COND_GEU:
- case TCG_COND_LEU:
- case TCG_COND_GTU:
- if (const_arg2) {
- if ((uint16_t) arg2 == arg2) {
- op = CMPLI;
- imm = 1;
- break;
- }
- }
- op = CMPL;
- imm = 0;
- break;
-
- default:
- tcg_abort();
- }
- op |= BF(cr) | ((type == TCG_TYPE_I64) << 21);
-
- if (imm) {
- tcg_out32(s, op | RA(arg1) | (arg2 & 0xffff));
- } else {
- if (const_arg2) {
- tcg_out_movi(s, type, TCG_REG_R0, arg2);
- arg2 = TCG_REG_R0;
- }
- tcg_out32(s, op | RA(arg1) | RB(arg2));
- }
-}
-
-static void tcg_out_setcond_eq0(TCGContext *s, TCGType type,
- TCGReg dst, TCGReg src)
-{
- if (type == TCG_TYPE_I32) {
- tcg_out32(s, CNTLZW | RS(src) | RA(dst));
- tcg_out_shri32(s, dst, dst, 5);
- } else {
- tcg_out32(s, CNTLZD | RS(src) | RA(dst));
- tcg_out_shri64(s, dst, dst, 6);
- }
-}
-
-static void tcg_out_setcond_ne0(TCGContext *s, TCGReg dst, TCGReg src)
-{
- /* X != 0 implies X + -1 generates a carry. Extra addition
- trickery means: R = X-1 + ~X + C = X-1 + (-X+1) + C = C. */
- if (dst != src) {
- tcg_out32(s, ADDIC | TAI(dst, src, -1));
- tcg_out32(s, SUBFE | TAB(dst, dst, src));
- } else {
- tcg_out32(s, ADDIC | TAI(TCG_REG_R0, src, -1));
- tcg_out32(s, SUBFE | TAB(dst, TCG_REG_R0, src));
- }
-}
-
-static TCGReg tcg_gen_setcond_xor(TCGContext *s, TCGReg arg1, TCGArg arg2,
- bool const_arg2)
-{
- if (const_arg2) {
- if ((uint32_t)arg2 == arg2) {
- tcg_out_xori32(s, TCG_REG_R0, arg1, arg2);
- } else {
- tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, arg2);
- tcg_out32(s, XOR | SAB(arg1, TCG_REG_R0, TCG_REG_R0));
- }
- } else {
- tcg_out32(s, XOR | SAB(arg1, TCG_REG_R0, arg2));
- }
- return TCG_REG_R0;
-}
-
-static void tcg_out_setcond(TCGContext *s, TCGType type, TCGCond cond,
- TCGArg arg0, TCGArg arg1, TCGArg arg2,
- int const_arg2)
-{
- int crop, sh;
-
- assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32);
-
- /* Ignore high bits of a potential constant arg2. */
- if (type == TCG_TYPE_I32) {
- arg2 = (uint32_t)arg2;
- }
-
- /* Handle common and trivial cases before handling anything else. */
- if (arg2 == 0) {
- switch (cond) {
- case TCG_COND_EQ:
- tcg_out_setcond_eq0(s, type, arg0, arg1);
- return;
- case TCG_COND_NE:
- if (TCG_TARGET_REG_BITS == 64 && type == TCG_TYPE_I32) {
- tcg_out_ext32u(s, TCG_REG_R0, arg1);
- arg1 = TCG_REG_R0;
- }
- tcg_out_setcond_ne0(s, arg0, arg1);
- return;
- case TCG_COND_GE:
- tcg_out32(s, NOR | SAB(arg1, arg0, arg1));
- arg1 = arg0;
- /* FALLTHRU */
- case TCG_COND_LT:
- /* Extract the sign bit. */
- if (type == TCG_TYPE_I32) {
- tcg_out_shri32(s, arg0, arg1, 31);
- } else {
- tcg_out_shri64(s, arg0, arg1, 63);
- }
- return;
- default:
- break;
- }
- }
-
- /* If we have ISEL, we can implement everything with 3 or 4 insns.
- All other cases below are also at least 3 insns, so speed up the
- code generator by not considering them and always using ISEL. */
- if (HAVE_ISEL) {
- int isel, tab;
-
- tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type);
-
- isel = tcg_to_isel[cond];
-
- tcg_out_movi(s, type, arg0, 1);
- if (isel & 1) {
- /* arg0 = (bc ? 0 : 1) */
- tab = TAB(arg0, 0, arg0);
- isel &= ~1;
- } else {
- /* arg0 = (bc ? 1 : 0) */
- tcg_out_movi(s, type, TCG_REG_R0, 0);
- tab = TAB(arg0, arg0, TCG_REG_R0);
- }
- tcg_out32(s, isel | tab);
- return;
- }
-
- switch (cond) {
- case TCG_COND_EQ:
- arg1 = tcg_gen_setcond_xor(s, arg1, arg2, const_arg2);
- tcg_out_setcond_eq0(s, type, arg0, arg1);
- return;
-
- case TCG_COND_NE:
- arg1 = tcg_gen_setcond_xor(s, arg1, arg2, const_arg2);
- /* Discard the high bits only once, rather than both inputs. */
- if (TCG_TARGET_REG_BITS == 64 && type == TCG_TYPE_I32) {
- tcg_out_ext32u(s, TCG_REG_R0, arg1);
- arg1 = TCG_REG_R0;
- }
- tcg_out_setcond_ne0(s, arg0, arg1);
- return;
-
- case TCG_COND_GT:
- case TCG_COND_GTU:
- sh = 30;
- crop = 0;
- goto crtest;
-
- case TCG_COND_LT:
- case TCG_COND_LTU:
- sh = 29;
- crop = 0;
- goto crtest;
-
- case TCG_COND_GE:
- case TCG_COND_GEU:
- sh = 31;
- crop = CRNOR | BT(7, CR_EQ) | BA(7, CR_LT) | BB(7, CR_LT);
- goto crtest;
-
- case TCG_COND_LE:
- case TCG_COND_LEU:
- sh = 31;
- crop = CRNOR | BT(7, CR_EQ) | BA(7, CR_GT) | BB(7, CR_GT);
- crtest:
- tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type);
- if (crop) {
- tcg_out32(s, crop);
- }
- tcg_out32(s, MFOCRF | RT(TCG_REG_R0) | FXM(7));
- tcg_out_rlw(s, RLWINM, arg0, TCG_REG_R0, sh, 31, 31);
- break;
-
- default:
- tcg_abort();
- }
-}
-
-static void tcg_out_bc(TCGContext *s, int bc, TCGLabel *l)
-{
- if (l->has_value) {
- tcg_out32(s, bc | reloc_pc14_val(s->code_ptr, l->u.value_ptr));
- } else {
- tcg_out_reloc(s, s->code_ptr, R_PPC_REL14, l, 0);
- tcg_out_bc_noaddr(s, bc);
- }
-}
-
-static void tcg_out_brcond(TCGContext *s, TCGCond cond,
- TCGArg arg1, TCGArg arg2, int const_arg2,
- TCGLabel *l, TCGType type)
-{
- tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type);
- tcg_out_bc(s, tcg_to_bc[cond], l);
-}
-
-static void tcg_out_movcond(TCGContext *s, TCGType type, TCGCond cond,
- TCGArg dest, TCGArg c1, TCGArg c2, TCGArg v1,
- TCGArg v2, bool const_c2)
-{
- /* If for some reason both inputs are zero, don't produce bad code. */
- if (v1 == 0 && v2 == 0) {
- tcg_out_movi(s, type, dest, 0);
- return;
- }
-
- tcg_out_cmp(s, cond, c1, c2, const_c2, 7, type);
-
- if (HAVE_ISEL) {
- int isel = tcg_to_isel[cond];
-
- /* Swap the V operands if the operation indicates inversion. */
- if (isel & 1) {
- int t = v1;
- v1 = v2;
- v2 = t;
- isel &= ~1;
- }
- /* V1 == 0 is handled by isel; V2 == 0 must be handled by hand. */
- if (v2 == 0) {
- tcg_out_movi(s, type, TCG_REG_R0, 0);
- }
- tcg_out32(s, isel | TAB(dest, v1, v2));
- } else {
- if (dest == v2) {
- cond = tcg_invert_cond(cond);
- v2 = v1;
- } else if (dest != v1) {
- if (v1 == 0) {
- tcg_out_movi(s, type, dest, 0);
- } else {
- tcg_out_mov(s, type, dest, v1);
- }
- }
- /* Branch forward over one insn */
- tcg_out32(s, tcg_to_bc[cond] | 8);
- if (v2 == 0) {
- tcg_out_movi(s, type, dest, 0);
- } else {
- tcg_out_mov(s, type, dest, v2);
- }
- }
-}
-
-static void tcg_out_cmp2(TCGContext *s, const TCGArg *args,
- const int *const_args)
-{
- static const struct { uint8_t bit1, bit2; } bits[] = {
- [TCG_COND_LT ] = { CR_LT, CR_LT },
- [TCG_COND_LE ] = { CR_LT, CR_GT },
- [TCG_COND_GT ] = { CR_GT, CR_GT },
- [TCG_COND_GE ] = { CR_GT, CR_LT },
- [TCG_COND_LTU] = { CR_LT, CR_LT },
- [TCG_COND_LEU] = { CR_LT, CR_GT },
- [TCG_COND_GTU] = { CR_GT, CR_GT },
- [TCG_COND_GEU] = { CR_GT, CR_LT },
- };
-
- TCGCond cond = args[4], cond2;
- TCGArg al, ah, bl, bh;
- int blconst, bhconst;
- int op, bit1, bit2;
-
- al = args[0];
- ah = args[1];
- bl = args[2];
- bh = args[3];
- blconst = const_args[2];
- bhconst = const_args[3];
-
- switch (cond) {
- case TCG_COND_EQ:
- op = CRAND;
- goto do_equality;
- case TCG_COND_NE:
- op = CRNAND;
- do_equality:
- tcg_out_cmp(s, cond, al, bl, blconst, 6, TCG_TYPE_I32);
- tcg_out_cmp(s, cond, ah, bh, bhconst, 7, TCG_TYPE_I32);
- tcg_out32(s, op | BT(7, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ));
- break;
-
- case TCG_COND_LT:
- case TCG_COND_LE:
- case TCG_COND_GT:
- case TCG_COND_GE:
- case TCG_COND_LTU:
- case TCG_COND_LEU:
- case TCG_COND_GTU:
- case TCG_COND_GEU:
- bit1 = bits[cond].bit1;
- bit2 = bits[cond].bit2;
- op = (bit1 != bit2 ? CRANDC : CRAND);
- cond2 = tcg_unsigned_cond(cond);
-
- tcg_out_cmp(s, cond, ah, bh, bhconst, 6, TCG_TYPE_I32);
- tcg_out_cmp(s, cond2, al, bl, blconst, 7, TCG_TYPE_I32);
- tcg_out32(s, op | BT(7, CR_EQ) | BA(6, CR_EQ) | BB(7, bit2));
- tcg_out32(s, CROR | BT(7, CR_EQ) | BA(6, bit1) | BB(7, CR_EQ));
- break;
-
- default:
- tcg_abort();
- }
-}
-
-static void tcg_out_setcond2(TCGContext *s, const TCGArg *args,
- const int *const_args)
-{
- tcg_out_cmp2(s, args + 1, const_args + 1);
- tcg_out32(s, MFOCRF | RT(TCG_REG_R0) | FXM(7));
- tcg_out_rlw(s, RLWINM, args[0], TCG_REG_R0, 31, 31, 31);
-}
-
-static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args,
- const int *const_args)
-{
- tcg_out_cmp2(s, args, const_args);
- tcg_out_bc(s, BC | BI(7, CR_EQ) | BO_COND_TRUE, arg_label(args[5]));
-}
-
-void ppc_tb_set_jmp_target(uintptr_t jmp_addr, uintptr_t addr)
-{
- TCGContext s;
-
- s.code_buf = s.code_ptr = (tcg_insn_unit *)jmp_addr;
- tcg_out_b(&s, 0, (tcg_insn_unit *)addr);
- flush_icache_range(jmp_addr, jmp_addr + tcg_current_code_size(&s));
-}
-
-static void tcg_out_call(TCGContext *s, tcg_insn_unit *target)
-{
-#ifdef _CALL_AIX
- /* Look through the descriptor. If the branch is in range, and we
- don't have to spend too much effort on building the toc. */
- void *tgt = ((void **)target)[0];
- uintptr_t toc = ((uintptr_t *)target)[1];
- intptr_t diff = tcg_pcrel_diff(s, tgt);
-
- if (in_range_b(diff) && toc == (uint32_t)toc) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP1, toc);
- tcg_out_b(s, LK, tgt);
- } else {
- /* Fold the low bits of the constant into the addresses below. */
- intptr_t arg = (intptr_t)target;
- int ofs = (int16_t)arg;
-
- if (ofs + 8 < 0x8000) {
- arg -= ofs;
- } else {
- ofs = 0;
- }
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP1, arg);
- tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_TMP1, ofs);
- tcg_out32(s, MTSPR | RA(TCG_REG_R0) | CTR);
- tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R2, TCG_REG_TMP1, ofs + SZP);
- tcg_out32(s, BCCTR | BO_ALWAYS | LK);
- }
-#elif defined(_CALL_ELF) && _CALL_ELF == 2
- intptr_t diff;
-
- /* In the ELFv2 ABI, we have to set up r12 to contain the destination
- address, which the callee uses to compute its TOC address. */
- /* FIXME: when the branch is in range, we could avoid r12 load if we
- knew that the destination uses the same TOC, and what its local
- entry point offset is. */
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R12, (intptr_t)target);
-
- diff = tcg_pcrel_diff(s, target);
- if (in_range_b(diff)) {
- tcg_out_b(s, LK, target);
- } else {
- tcg_out32(s, MTSPR | RS(TCG_REG_R12) | CTR);
- tcg_out32(s, BCCTR | BO_ALWAYS | LK);
- }
-#else
- tcg_out_b(s, LK, target);
-#endif
-}
-
-static const uint32_t qemu_ldx_opc[16] = {
- [MO_UB] = LBZX,
- [MO_UW] = LHZX,
- [MO_UL] = LWZX,
- [MO_Q] = LDX,
- [MO_SW] = LHAX,
- [MO_SL] = LWAX,
- [MO_BSWAP | MO_UB] = LBZX,
- [MO_BSWAP | MO_UW] = LHBRX,
- [MO_BSWAP | MO_UL] = LWBRX,
- [MO_BSWAP | MO_Q] = LDBRX,
-};
-
-static const uint32_t qemu_stx_opc[16] = {
- [MO_UB] = STBX,
- [MO_UW] = STHX,
- [MO_UL] = STWX,
- [MO_Q] = STDX,
- [MO_BSWAP | MO_UB] = STBX,
- [MO_BSWAP | MO_UW] = STHBRX,
- [MO_BSWAP | MO_UL] = STWBRX,
- [MO_BSWAP | MO_Q] = STDBRX,
-};
-
-static const uint32_t qemu_exts_opc[4] = {
- EXTSB, EXTSH, EXTSW, 0
-};
-
-#if defined (CONFIG_SOFTMMU)
-/* helper signature: helper_ld_mmu(CPUState *env, target_ulong addr,
- * int mmu_idx, uintptr_t ra)
- */
-static void * const qemu_ld_helpers[16] = {
- [MO_UB] = helper_ret_ldub_mmu,
- [MO_LEUW] = helper_le_lduw_mmu,
- [MO_LEUL] = helper_le_ldul_mmu,
- [MO_LEQ] = helper_le_ldq_mmu,
- [MO_BEUW] = helper_be_lduw_mmu,
- [MO_BEUL] = helper_be_ldul_mmu,
- [MO_BEQ] = helper_be_ldq_mmu,
-};
-
-/* helper signature: helper_st_mmu(CPUState *env, target_ulong addr,
- * uintxx_t val, int mmu_idx, uintptr_t ra)
- */
-static void * const qemu_st_helpers[16] = {
- [MO_UB] = helper_ret_stb_mmu,
- [MO_LEUW] = helper_le_stw_mmu,
- [MO_LEUL] = helper_le_stl_mmu,
- [MO_LEQ] = helper_le_stq_mmu,
- [MO_BEUW] = helper_be_stw_mmu,
- [MO_BEUL] = helper_be_stl_mmu,
- [MO_BEQ] = helper_be_stq_mmu,
-};
-
-/* Perform the TLB load and compare. Places the result of the comparison
- in CR7, loads the addend of the TLB into R3, and returns the register
- containing the guest address (zero-extended into R4). Clobbers R0 and R2. */
-
-static TCGReg tcg_out_tlb_read(TCGContext *s, TCGMemOp s_bits,
- TCGReg addrlo, TCGReg addrhi,
- int mem_index, bool is_read)
-{
- int cmp_off
- = (is_read
- ? offsetof(CPUArchState, tlb_table[mem_index][0].addr_read)
- : offsetof(CPUArchState, tlb_table[mem_index][0].addr_write));
- int add_off = offsetof(CPUArchState, tlb_table[mem_index][0].addend);
- TCGReg base = TCG_AREG0;
-
- /* Extract the page index, shifted into place for tlb index. */
- if (TCG_TARGET_REG_BITS == 64) {
- if (TARGET_LONG_BITS == 32) {
- /* Zero-extend the address into a place helpful for further use. */
- tcg_out_ext32u(s, TCG_REG_R4, addrlo);
- addrlo = TCG_REG_R4;
- } else {
- tcg_out_rld(s, RLDICL, TCG_REG_R3, addrlo,
- 64 - TARGET_PAGE_BITS, 64 - CPU_TLB_BITS);
- }
- }
-
- /* Compensate for very large offsets. */
- if (add_off >= 0x8000) {
- /* Most target env are smaller than 32k; none are larger than 64k.
- Simplify the logic here merely to offset by 0x7ff0, giving us a
- range just shy of 64k. Check this assumption. */
- QEMU_BUILD_BUG_ON(offsetof(CPUArchState,
- tlb_table[NB_MMU_MODES - 1][1])
- > 0x7ff0 + 0x7fff);
- tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, base, 0x7ff0));
- base = TCG_REG_TMP1;
- cmp_off -= 0x7ff0;
- add_off -= 0x7ff0;
- }
-
- /* Extraction and shifting, part 2. */
- if (TCG_TARGET_REG_BITS == 32 || TARGET_LONG_BITS == 32) {
- tcg_out_rlw(s, RLWINM, TCG_REG_R3, addrlo,
- 32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS),
- 32 - (CPU_TLB_BITS + CPU_TLB_ENTRY_BITS),
- 31 - CPU_TLB_ENTRY_BITS);
- } else {
- tcg_out_shli64(s, TCG_REG_R3, TCG_REG_R3, CPU_TLB_ENTRY_BITS);
- }
-
- tcg_out32(s, ADD | TAB(TCG_REG_R3, TCG_REG_R3, base));
-
- /* Load the tlb comparator. */
- if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) {
- tcg_out_ld(s, TCG_TYPE_I32, TCG_REG_R4, TCG_REG_R3, cmp_off);
- tcg_out_ld(s, TCG_TYPE_I32, TCG_REG_TMP1, TCG_REG_R3, cmp_off + 4);
- } else {
- tcg_out_ld(s, TCG_TYPE_TL, TCG_REG_TMP1, TCG_REG_R3, cmp_off);
- }
-
- /* Load the TLB addend for use on the fast path. Do this asap
- to minimize any load use delay. */
- tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R3, TCG_REG_R3, add_off);
-
- /* Clear the non-page, non-alignment bits from the address. */
- if (TCG_TARGET_REG_BITS == 32 || TARGET_LONG_BITS == 32) {
- tcg_out_rlw(s, RLWINM, TCG_REG_R0, addrlo, 0,
- (32 - s_bits) & 31, 31 - TARGET_PAGE_BITS);
- } else if (!s_bits) {
- tcg_out_rld(s, RLDICR, TCG_REG_R0, addrlo,
- 0, 63 - TARGET_PAGE_BITS);
- } else {
- tcg_out_rld(s, RLDICL, TCG_REG_R0, addrlo,
- 64 - TARGET_PAGE_BITS, TARGET_PAGE_BITS - s_bits);
- tcg_out_rld(s, RLDICL, TCG_REG_R0, TCG_REG_R0, TARGET_PAGE_BITS, 0);
- }
-
- if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) {
- tcg_out_cmp(s, TCG_COND_EQ, TCG_REG_R0, TCG_REG_TMP1,
- 0, 7, TCG_TYPE_I32);
- tcg_out_cmp(s, TCG_COND_EQ, addrhi, TCG_REG_R4, 0, 6, TCG_TYPE_I32);
- tcg_out32(s, CRAND | BT(7, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ));
- } else {
- tcg_out_cmp(s, TCG_COND_EQ, TCG_REG_R0, TCG_REG_TMP1,
- 0, 7, TCG_TYPE_TL);
- }
-
- return addrlo;
-}
-
-/* Record the context of a call to the out of line helper code for the slow
- path for a load or store, so that we can later generate the correct
- helper code. */
-static void add_qemu_ldst_label(TCGContext *s, bool is_ld, TCGMemOpIdx oi,
- TCGReg datalo_reg, TCGReg datahi_reg,
- TCGReg addrlo_reg, TCGReg addrhi_reg,
- tcg_insn_unit *raddr, tcg_insn_unit *lptr)
-{
- TCGLabelQemuLdst *label = new_ldst_label(s);
-
- label->is_ld = is_ld;
- label->oi = oi;
- label->datalo_reg = datalo_reg;
- label->datahi_reg = datahi_reg;
- label->addrlo_reg = addrlo_reg;
- label->addrhi_reg = addrhi_reg;
- label->raddr = raddr;
- label->label_ptr[0] = lptr;
-}
-
-static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb)
-{
- TCGMemOpIdx oi = lb->oi;
- TCGMemOp opc = get_memop(oi);
- TCGReg hi, lo, arg = TCG_REG_R3;
-
- reloc_pc14(lb->label_ptr[0], s->code_ptr);
-
- tcg_out_mov(s, TCG_TYPE_PTR, arg++, TCG_AREG0);
-
- lo = lb->addrlo_reg;
- hi = lb->addrhi_reg;
- if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) {
-#ifdef TCG_TARGET_CALL_ALIGN_ARGS
- arg |= 1;
-#endif
- tcg_out_mov(s, TCG_TYPE_I32, arg++, hi);
- tcg_out_mov(s, TCG_TYPE_I32, arg++, lo);
- } else {
- /* If the address needed to be zero-extended, we'll have already
- placed it in R4. The only remaining case is 64-bit guest. */
- tcg_out_mov(s, TCG_TYPE_TL, arg++, lo);
- }
-
- tcg_out_movi(s, TCG_TYPE_I32, arg++, oi);
- tcg_out32(s, MFSPR | RT(arg) | LR);
-
- tcg_out_call(s, qemu_ld_helpers[opc & (MO_BSWAP | MO_SIZE)]);
-
- lo = lb->datalo_reg;
- hi = lb->datahi_reg;
- if (TCG_TARGET_REG_BITS == 32 && (opc & MO_SIZE) == MO_64) {
- tcg_out_mov(s, TCG_TYPE_I32, lo, TCG_REG_R4);
- tcg_out_mov(s, TCG_TYPE_I32, hi, TCG_REG_R3);
- } else if (opc & MO_SIGN) {
- uint32_t insn = qemu_exts_opc[opc & MO_SIZE];
- tcg_out32(s, insn | RA(lo) | RS(TCG_REG_R3));
- } else {
- tcg_out_mov(s, TCG_TYPE_REG, lo, TCG_REG_R3);
- }
-
- tcg_out_b(s, 0, lb->raddr);
-}
-
-static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *lb)
-{
- TCGMemOpIdx oi = lb->oi;
- TCGMemOp opc = get_memop(oi);
- TCGMemOp s_bits = opc & MO_SIZE;
- TCGReg hi, lo, arg = TCG_REG_R3;
-
- reloc_pc14(lb->label_ptr[0], s->code_ptr);
-
- tcg_out_mov(s, TCG_TYPE_PTR, arg++, TCG_AREG0);
-
- lo = lb->addrlo_reg;
- hi = lb->addrhi_reg;
- if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) {
-#ifdef TCG_TARGET_CALL_ALIGN_ARGS
- arg |= 1;
-#endif
- tcg_out_mov(s, TCG_TYPE_I32, arg++, hi);
- tcg_out_mov(s, TCG_TYPE_I32, arg++, lo);
- } else {
- /* If the address needed to be zero-extended, we'll have already
- placed it in R4. The only remaining case is 64-bit guest. */
- tcg_out_mov(s, TCG_TYPE_TL, arg++, lo);
- }
-
- lo = lb->datalo_reg;
- hi = lb->datahi_reg;
- if (TCG_TARGET_REG_BITS == 32) {
- switch (s_bits) {
- case MO_64:
-#ifdef TCG_TARGET_CALL_ALIGN_ARGS
- arg |= 1;
-#endif
- tcg_out_mov(s, TCG_TYPE_I32, arg++, hi);
- /* FALLTHRU */
- case MO_32:
- tcg_out_mov(s, TCG_TYPE_I32, arg++, lo);
- break;
- default:
- tcg_out_rlw(s, RLWINM, arg++, lo, 0, 32 - (8 << s_bits), 31);
- break;
- }
- } else {
- if (s_bits == MO_64) {
- tcg_out_mov(s, TCG_TYPE_I64, arg++, lo);
- } else {
- tcg_out_rld(s, RLDICL, arg++, lo, 0, 64 - (8 << s_bits));
- }
- }
-
- tcg_out_movi(s, TCG_TYPE_I32, arg++, oi);
- tcg_out32(s, MFSPR | RT(arg) | LR);
-
- tcg_out_call(s, qemu_st_helpers[opc & (MO_BSWAP | MO_SIZE)]);
-
- tcg_out_b(s, 0, lb->raddr);
-}
-#endif /* SOFTMMU */
-
-static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is_64)
-{
- TCGReg datalo, datahi, addrlo, rbase;
- TCGReg addrhi __attribute__((unused));
- TCGMemOpIdx oi;
- TCGMemOp opc, s_bits;
-#ifdef CONFIG_SOFTMMU
- int mem_index;
- tcg_insn_unit *label_ptr;
-#endif
-
- datalo = *args++;
- datahi = (TCG_TARGET_REG_BITS == 32 && is_64 ? *args++ : 0);
- addrlo = *args++;
- addrhi = (TCG_TARGET_REG_BITS < TARGET_LONG_BITS ? *args++ : 0);
- oi = *args++;
- opc = get_memop(oi);
- s_bits = opc & MO_SIZE;
-
-#ifdef CONFIG_SOFTMMU
- mem_index = get_mmuidx(oi);
- addrlo = tcg_out_tlb_read(s, s_bits, addrlo, addrhi, mem_index, true);
-
- /* Load a pointer into the current opcode w/conditional branch-link. */
- label_ptr = s->code_ptr;
- tcg_out_bc_noaddr(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK);
-
- rbase = TCG_REG_R3;
-#else /* !CONFIG_SOFTMMU */
- rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
- if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
- tcg_out_ext32u(s, TCG_REG_TMP1, addrlo);
- addrlo = TCG_REG_TMP1;
- }
-#endif
-
- if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) {
- if (opc & MO_BSWAP) {
- tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4));
- tcg_out32(s, LWBRX | TAB(datalo, rbase, addrlo));
- tcg_out32(s, LWBRX | TAB(datahi, rbase, TCG_REG_R0));
- } else if (rbase != 0) {
- tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4));
- tcg_out32(s, LWZX | TAB(datahi, rbase, addrlo));
- tcg_out32(s, LWZX | TAB(datalo, rbase, TCG_REG_R0));
- } else if (addrlo == datahi) {
- tcg_out32(s, LWZ | TAI(datalo, addrlo, 4));
- tcg_out32(s, LWZ | TAI(datahi, addrlo, 0));
- } else {
- tcg_out32(s, LWZ | TAI(datahi, addrlo, 0));
- tcg_out32(s, LWZ | TAI(datalo, addrlo, 4));
- }
- } else {
- uint32_t insn = qemu_ldx_opc[opc & (MO_BSWAP | MO_SSIZE)];
- if (!HAVE_ISA_2_06 && insn == LDBRX) {
- tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4));
- tcg_out32(s, LWBRX | TAB(datalo, rbase, addrlo));
- tcg_out32(s, LWBRX | TAB(TCG_REG_R0, rbase, TCG_REG_R0));
- tcg_out_rld(s, RLDIMI, datalo, TCG_REG_R0, 32, 0);
- } else if (insn) {
- tcg_out32(s, insn | TAB(datalo, rbase, addrlo));
- } else {
- insn = qemu_ldx_opc[opc & (MO_SIZE | MO_BSWAP)];
- tcg_out32(s, insn | TAB(datalo, rbase, addrlo));
- insn = qemu_exts_opc[s_bits];
- tcg_out32(s, insn | RA(datalo) | RS(datalo));
- }
- }
-
-#ifdef CONFIG_SOFTMMU
- add_qemu_ldst_label(s, true, oi, datalo, datahi, addrlo, addrhi,
- s->code_ptr, label_ptr);
-#endif
-}
-
-static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64)
-{
- TCGReg datalo, datahi, addrlo, rbase;
- TCGReg addrhi __attribute__((unused));
- TCGMemOpIdx oi;
- TCGMemOp opc, s_bits;
-#ifdef CONFIG_SOFTMMU
- int mem_index;
- tcg_insn_unit *label_ptr;
-#endif
-
- datalo = *args++;
- datahi = (TCG_TARGET_REG_BITS == 32 && is_64 ? *args++ : 0);
- addrlo = *args++;
- addrhi = (TCG_TARGET_REG_BITS < TARGET_LONG_BITS ? *args++ : 0);
- oi = *args++;
- opc = get_memop(oi);
- s_bits = opc & MO_SIZE;
-
-#ifdef CONFIG_SOFTMMU
- mem_index = get_mmuidx(oi);
- addrlo = tcg_out_tlb_read(s, s_bits, addrlo, addrhi, mem_index, false);
-
- /* Load a pointer into the current opcode w/conditional branch-link. */
- label_ptr = s->code_ptr;
- tcg_out_bc_noaddr(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK);
-
- rbase = TCG_REG_R3;
-#else /* !CONFIG_SOFTMMU */
- rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
- if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
- tcg_out_ext32u(s, TCG_REG_TMP1, addrlo);
- addrlo = TCG_REG_TMP1;
- }
-#endif
-
- if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) {
- if (opc & MO_BSWAP) {
- tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4));
- tcg_out32(s, STWBRX | SAB(datalo, rbase, addrlo));
- tcg_out32(s, STWBRX | SAB(datahi, rbase, TCG_REG_R0));
- } else if (rbase != 0) {
- tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4));
- tcg_out32(s, STWX | SAB(datahi, rbase, addrlo));
- tcg_out32(s, STWX | SAB(datalo, rbase, TCG_REG_R0));
- } else {
- tcg_out32(s, STW | TAI(datahi, addrlo, 0));
- tcg_out32(s, STW | TAI(datalo, addrlo, 4));
- }
- } else {
- uint32_t insn = qemu_stx_opc[opc & (MO_BSWAP | MO_SIZE)];
- if (!HAVE_ISA_2_06 && insn == STDBRX) {
- tcg_out32(s, STWBRX | SAB(datalo, rbase, addrlo));
- tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, addrlo, 4));
- tcg_out_shri64(s, TCG_REG_R0, datalo, 32);
- tcg_out32(s, STWBRX | SAB(TCG_REG_R0, rbase, TCG_REG_TMP1));
- } else {
- tcg_out32(s, insn | SAB(datalo, rbase, addrlo));
- }
- }
-
-#ifdef CONFIG_SOFTMMU
- add_qemu_ldst_label(s, false, oi, datalo, datahi, addrlo, addrhi,
- s->code_ptr, label_ptr);
-#endif
-}
-
-/* Parameters for function call generation, used in tcg.c. */
-#define TCG_TARGET_STACK_ALIGN 16
-#define TCG_TARGET_EXTEND_ARGS 1
-
-#ifdef _CALL_AIX
-# define LINK_AREA_SIZE (6 * SZR)
-# define LR_OFFSET (1 * SZR)
-# define TCG_TARGET_CALL_STACK_OFFSET (LINK_AREA_SIZE + 8 * SZR)
-#elif defined(TCG_TARGET_CALL_DARWIN)
-# define LINK_AREA_SIZE (6 * SZR)
-# define LR_OFFSET (2 * SZR)
-#elif TCG_TARGET_REG_BITS == 64
-# if defined(_CALL_ELF) && _CALL_ELF == 2
-# define LINK_AREA_SIZE (4 * SZR)
-# define LR_OFFSET (1 * SZR)
-# endif
-#else /* TCG_TARGET_REG_BITS == 32 */
-# if defined(_CALL_SYSV)
-# define LINK_AREA_SIZE (2 * SZR)
-# define LR_OFFSET (1 * SZR)
-# endif
-#endif
-#ifndef LR_OFFSET
-# error "Unhandled abi"
-#endif
-#ifndef TCG_TARGET_CALL_STACK_OFFSET
-# define TCG_TARGET_CALL_STACK_OFFSET LINK_AREA_SIZE
-#endif
-
-#define CPU_TEMP_BUF_SIZE (CPU_TEMP_BUF_NLONGS * (int)sizeof(long))
-#define REG_SAVE_SIZE ((int)ARRAY_SIZE(tcg_target_callee_save_regs) * SZR)
-
-#define FRAME_SIZE ((TCG_TARGET_CALL_STACK_OFFSET \
- + TCG_STATIC_CALL_ARGS_SIZE \
- + CPU_TEMP_BUF_SIZE \
- + REG_SAVE_SIZE \
- + TCG_TARGET_STACK_ALIGN - 1) \
- & -TCG_TARGET_STACK_ALIGN)
-
-#define REG_SAVE_BOT (FRAME_SIZE - REG_SAVE_SIZE)
-
-static void tcg_target_qemu_prologue(TCGContext *s)
-{
- int i;
-
-#ifdef _CALL_AIX
- void **desc = (void **)s->code_ptr;
- desc[0] = desc + 2; /* entry point */
- desc[1] = 0; /* environment pointer */
- s->code_ptr = (void *)(desc + 2); /* skip over descriptor */
-#endif
-
- tcg_set_frame(s, TCG_REG_CALL_STACK, REG_SAVE_BOT - CPU_TEMP_BUF_SIZE,
- CPU_TEMP_BUF_SIZE);
-
- /* Prologue */
- tcg_out32(s, MFSPR | RT(TCG_REG_R0) | LR);
- tcg_out32(s, (SZR == 8 ? STDU : STWU)
- | SAI(TCG_REG_R1, TCG_REG_R1, -FRAME_SIZE));
-
- for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i) {
- tcg_out_st(s, TCG_TYPE_REG, tcg_target_callee_save_regs[i],
- TCG_REG_R1, REG_SAVE_BOT + i * SZR);
- }
- tcg_out_st(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_R1, FRAME_SIZE+LR_OFFSET);
-
-#ifdef CONFIG_USE_GUEST_BASE
- if (GUEST_BASE) {
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE);
- tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
- }
-#endif
-
- tcg_out_mov(s, TCG_TYPE_PTR, TCG_AREG0, tcg_target_call_iarg_regs[0]);
- tcg_out32(s, MTSPR | RS(tcg_target_call_iarg_regs[1]) | CTR);
-
- if (USE_REG_RA) {
-#ifdef _CALL_AIX
- /* Make the caller load the value as the TOC into R2. */
- tb_ret_addr = s->code_ptr + 2;
- desc[1] = tb_ret_addr;
- tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_RA, TCG_REG_R2);
- tcg_out32(s, BCCTR | BO_ALWAYS);
-#elif defined(_CALL_ELF) && _CALL_ELF == 2
- /* Compute from the incoming R12 value. */
- tb_ret_addr = s->code_ptr + 2;
- tcg_out32(s, ADDI | TAI(TCG_REG_RA, TCG_REG_R12,
- tcg_ptr_byte_diff(tb_ret_addr, s->code_buf)));
- tcg_out32(s, BCCTR | BO_ALWAYS);
-#else
- /* Reserve max 5 insns for the constant load. */
- tb_ret_addr = s->code_ptr + 6;
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_RA, (intptr_t)tb_ret_addr);
- tcg_out32(s, BCCTR | BO_ALWAYS);
- while (s->code_ptr < tb_ret_addr) {
- tcg_out32(s, NOP);
- }
-#endif
- } else {
- tcg_out32(s, BCCTR | BO_ALWAYS);
- tb_ret_addr = s->code_ptr;
- }
-
- /* Epilogue */
- assert(tb_ret_addr == s->code_ptr);
-
- tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_R1, FRAME_SIZE+LR_OFFSET);
- for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i) {
- tcg_out_ld(s, TCG_TYPE_REG, tcg_target_callee_save_regs[i],
- TCG_REG_R1, REG_SAVE_BOT + i * SZR);
- }
- tcg_out32(s, MTSPR | RS(TCG_REG_R0) | LR);
- tcg_out32(s, ADDI | TAI(TCG_REG_R1, TCG_REG_R1, FRAME_SIZE));
- tcg_out32(s, BCLR | BO_ALWAYS);
-}
-
-static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
- const int *const_args)
-{
- TCGArg a0, a1, a2;
- int c;
-
- switch (opc) {
- case INDEX_op_exit_tb:
- if (USE_REG_RA) {
- ptrdiff_t disp = tcg_pcrel_diff(s, tb_ret_addr);
-
- /* If we can use a direct branch, otherwise use the value in RA.
- Note that the direct branch is always forward. If it's in
- range now, it'll still be in range after the movi. Don't
- bother about the 20 bytes where the test here fails but it
- would succeed below. */
- if (!in_range_b(disp)) {
- tcg_out32(s, MTSPR | RS(TCG_REG_RA) | CTR);
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R3, args[0]);
- tcg_out32(s, BCCTR | BO_ALWAYS);
- break;
- }
- }
- tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R3, args[0]);
- tcg_out_b(s, 0, tb_ret_addr);
- break;
- case INDEX_op_goto_tb:
- if (s->tb_jmp_offset) {
- /* Direct jump method. */
- s->tb_jmp_offset[args[0]] = tcg_current_code_size(s);
- s->code_ptr += 7;
- } else {
- /* Indirect jump method. */
- tcg_abort();
- }
- s->tb_next_offset[args[0]] = tcg_current_code_size(s);
- break;
- case INDEX_op_br:
- {
- TCGLabel *l = arg_label(args[0]);
-
- if (l->has_value) {
- tcg_out_b(s, 0, l->u.value_ptr);
- } else {
- tcg_out_reloc(s, s->code_ptr, R_PPC_REL24, l, 0);
- tcg_out_b_noaddr(s, B);
- }
- }
- break;
- case INDEX_op_ld8u_i32:
- case INDEX_op_ld8u_i64:
- tcg_out_mem_long(s, LBZ, LBZX, args[0], args[1], args[2]);
- break;
- case INDEX_op_ld8s_i32:
- case INDEX_op_ld8s_i64:
- tcg_out_mem_long(s, LBZ, LBZX, args[0], args[1], args[2]);
- tcg_out32(s, EXTSB | RS(args[0]) | RA(args[0]));
- break;
- case INDEX_op_ld16u_i32:
- case INDEX_op_ld16u_i64:
- tcg_out_mem_long(s, LHZ, LHZX, args[0], args[1], args[2]);
- break;
- case INDEX_op_ld16s_i32:
- case INDEX_op_ld16s_i64:
- tcg_out_mem_long(s, LHA, LHAX, args[0], args[1], args[2]);
- break;
- case INDEX_op_ld_i32:
- case INDEX_op_ld32u_i64:
- tcg_out_mem_long(s, LWZ, LWZX, args[0], args[1], args[2]);
- break;
- case INDEX_op_ld32s_i64:
- tcg_out_mem_long(s, LWA, LWAX, args[0], args[1], args[2]);
- break;
- case INDEX_op_ld_i64:
- tcg_out_mem_long(s, LD, LDX, args[0], args[1], args[2]);
- break;
- case INDEX_op_st8_i32:
- case INDEX_op_st8_i64:
- tcg_out_mem_long(s, STB, STBX, args[0], args[1], args[2]);
- break;
- case INDEX_op_st16_i32:
- case INDEX_op_st16_i64:
- tcg_out_mem_long(s, STH, STHX, args[0], args[1], args[2]);
- break;
- case INDEX_op_st_i32:
- case INDEX_op_st32_i64:
- tcg_out_mem_long(s, STW, STWX, args[0], args[1], args[2]);
- break;
- case INDEX_op_st_i64:
- tcg_out_mem_long(s, STD, STDX, args[0], args[1], args[2]);
- break;
-
- case INDEX_op_add_i32:
- a0 = args[0], a1 = args[1], a2 = args[2];
- if (const_args[2]) {
- do_addi_32:
- tcg_out_mem_long(s, ADDI, ADD, a0, a1, (int32_t)a2);
- } else {
- tcg_out32(s, ADD | TAB(a0, a1, a2));
- }
- break;
- case INDEX_op_sub_i32:
- a0 = args[0], a1 = args[1], a2 = args[2];
- if (const_args[1]) {
- if (const_args[2]) {
- tcg_out_movi(s, TCG_TYPE_I32, a0, a1 - a2);
- } else {
- tcg_out32(s, SUBFIC | TAI(a0, a2, a1));
- }
- } else if (const_args[2]) {
- a2 = -a2;
- goto do_addi_32;
- } else {
- tcg_out32(s, SUBF | TAB(a0, a2, a1));
- }
- break;
-
- case INDEX_op_and_i32:
- a0 = args[0], a1 = args[1], a2 = args[2];
- if (const_args[2]) {
- tcg_out_andi32(s, a0, a1, a2);
- } else {
- tcg_out32(s, AND | SAB(a1, a0, a2));
- }
- break;
- case INDEX_op_and_i64:
- a0 = args[0], a1 = args[1], a2 = args[2];
- if (const_args[2]) {
- tcg_out_andi64(s, a0, a1, a2);
- } else {
- tcg_out32(s, AND | SAB(a1, a0, a2));
- }
- break;
- case INDEX_op_or_i64:
- case INDEX_op_or_i32:
- a0 = args[0], a1 = args[1], a2 = args[2];
- if (const_args[2]) {
- tcg_out_ori32(s, a0, a1, a2);
- } else {
- tcg_out32(s, OR | SAB(a1, a0, a2));
- }
- break;
- case INDEX_op_xor_i64:
- case INDEX_op_xor_i32:
- a0 = args[0], a1 = args[1], a2 = args[2];
- if (const_args[2]) {
- tcg_out_xori32(s, a0, a1, a2);
- } else {
- tcg_out32(s, XOR | SAB(a1, a0, a2));
- }
- break;
- case INDEX_op_andc_i32:
- a0 = args[0], a1 = args[1], a2 = args[2];
- if (const_args[2]) {
- tcg_out_andi32(s, a0, a1, ~a2);
- } else {
- tcg_out32(s, ANDC | SAB(a1, a0, a2));
- }
- break;
- case INDEX_op_andc_i64:
- a0 = args[0], a1 = args[1], a2 = args[2];
- if (const_args[2]) {
- tcg_out_andi64(s, a0, a1, ~a2);
- } else {
- tcg_out32(s, ANDC | SAB(a1, a0, a2));
- }
- break;
- case INDEX_op_orc_i32:
- if (const_args[2]) {
- tcg_out_ori32(s, args[0], args[1], ~args[2]);
- break;
- }
- /* FALLTHRU */
- case INDEX_op_orc_i64:
- tcg_out32(s, ORC | SAB(args[1], args[0], args[2]));
- break;
- case INDEX_op_eqv_i32:
- if (const_args[2]) {
- tcg_out_xori32(s, args[0], args[1], ~args[2]);
- break;
- }
- /* FALLTHRU */
- case INDEX_op_eqv_i64:
- tcg_out32(s, EQV | SAB(args[1], args[0], args[2]));
- break;
- case INDEX_op_nand_i32:
- case INDEX_op_nand_i64:
- tcg_out32(s, NAND | SAB(args[1], args[0], args[2]));
- break;
- case INDEX_op_nor_i32:
- case INDEX_op_nor_i64:
- tcg_out32(s, NOR | SAB(args[1], args[0], args[2]));
- break;
-
- case INDEX_op_mul_i32:
- a0 = args[0], a1 = args[1], a2 = args[2];
- if (const_args[2]) {
- tcg_out32(s, MULLI | TAI(a0, a1, a2));
- } else {
- tcg_out32(s, MULLW | TAB(a0, a1, a2));
- }
- break;
-
- case INDEX_op_div_i32:
- tcg_out32(s, DIVW | TAB(args[0], args[1], args[2]));
- break;
-
- case INDEX_op_divu_i32:
- tcg_out32(s, DIVWU | TAB(args[0], args[1], args[2]));
- break;
-
- case INDEX_op_shl_i32:
- if (const_args[2]) {
- tcg_out_shli32(s, args[0], args[1], args[2]);
- } else {
- tcg_out32(s, SLW | SAB(args[1], args[0], args[2]));
- }
- break;
- case INDEX_op_shr_i32:
- if (const_args[2]) {
- tcg_out_shri32(s, args[0], args[1], args[2]);
- } else {
- tcg_out32(s, SRW | SAB(args[1], args[0], args[2]));
- }
- break;
- case INDEX_op_sar_i32:
- if (const_args[2]) {
- tcg_out32(s, SRAWI | RS(args[1]) | RA(args[0]) | SH(args[2]));
- } else {
- tcg_out32(s, SRAW | SAB(args[1], args[0], args[2]));
- }
- break;
- case INDEX_op_rotl_i32:
- if (const_args[2]) {
- tcg_out_rlw(s, RLWINM, args[0], args[1], args[2], 0, 31);
- } else {
- tcg_out32(s, RLWNM | SAB(args[1], args[0], args[2])
- | MB(0) | ME(31));
- }
- break;
- case INDEX_op_rotr_i32:
- if (const_args[2]) {
- tcg_out_rlw(s, RLWINM, args[0], args[1], 32 - args[2], 0, 31);
- } else {
- tcg_out32(s, SUBFIC | TAI(TCG_REG_R0, args[2], 32));
- tcg_out32(s, RLWNM | SAB(args[1], args[0], TCG_REG_R0)
- | MB(0) | ME(31));
- }
- break;
-
- case INDEX_op_brcond_i32:
- tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
- arg_label(args[3]), TCG_TYPE_I32);
- break;
- case INDEX_op_brcond_i64:
- tcg_out_brcond(s, args[2], args[0], args[1], const_args[1],
- arg_label(args[3]), TCG_TYPE_I64);
- break;
- case INDEX_op_brcond2_i32:
- tcg_out_brcond2(s, args, const_args);
- break;
-
- case INDEX_op_neg_i32:
- case INDEX_op_neg_i64:
- tcg_out32(s, NEG | RT(args[0]) | RA(args[1]));
- break;
-
- case INDEX_op_not_i32:
- case INDEX_op_not_i64:
- tcg_out32(s, NOR | SAB(args[1], args[0], args[1]));
- break;
-
- case INDEX_op_add_i64:
- a0 = args[0], a1 = args[1], a2 = args[2];
- if (const_args[2]) {
- do_addi_64:
- tcg_out_mem_long(s, ADDI, ADD, a0, a1, a2);
- } else {
- tcg_out32(s, ADD | TAB(a0, a1, a2));
- }
- break;
- case INDEX_op_sub_i64:
- a0 = args[0], a1 = args[1], a2 = args[2];
- if (const_args[1]) {
- if (const_args[2]) {
- tcg_out_movi(s, TCG_TYPE_I64, a0, a1 - a2);
- } else {
- tcg_out32(s, SUBFIC | TAI(a0, a2, a1));
- }
- } else if (const_args[2]) {
- a2 = -a2;
- goto do_addi_64;
- } else {
- tcg_out32(s, SUBF | TAB(a0, a2, a1));
- }
- break;
-
- case INDEX_op_shl_i64:
- if (const_args[2]) {
- tcg_out_shli64(s, args[0], args[1], args[2]);
- } else {
- tcg_out32(s, SLD | SAB(args[1], args[0], args[2]));
- }
- break;
- case INDEX_op_shr_i64:
- if (const_args[2]) {
- tcg_out_shri64(s, args[0], args[1], args[2]);
- } else {
- tcg_out32(s, SRD | SAB(args[1], args[0], args[2]));
- }
- break;
- case INDEX_op_sar_i64:
- if (const_args[2]) {
- int sh = SH(args[2] & 0x1f) | (((args[2] >> 5) & 1) << 1);
- tcg_out32(s, SRADI | RA(args[0]) | RS(args[1]) | sh);
- } else {
- tcg_out32(s, SRAD | SAB(args[1], args[0], args[2]));
- }
- break;
- case INDEX_op_rotl_i64:
- if (const_args[2]) {
- tcg_out_rld(s, RLDICL, args[0], args[1], args[2], 0);
- } else {
- tcg_out32(s, RLDCL | SAB(args[1], args[0], args[2]) | MB64(0));
- }
- break;
- case INDEX_op_rotr_i64:
- if (const_args[2]) {
- tcg_out_rld(s, RLDICL, args[0], args[1], 64 - args[2], 0);
- } else {
- tcg_out32(s, SUBFIC | TAI(TCG_REG_R0, args[2], 64));
- tcg_out32(s, RLDCL | SAB(args[1], args[0], TCG_REG_R0) | MB64(0));
- }
- break;
-
- case INDEX_op_mul_i64:
- a0 = args[0], a1 = args[1], a2 = args[2];
- if (const_args[2]) {
- tcg_out32(s, MULLI | TAI(a0, a1, a2));
- } else {
- tcg_out32(s, MULLD | TAB(a0, a1, a2));
- }
- break;
- case INDEX_op_div_i64:
- tcg_out32(s, DIVD | TAB(args[0], args[1], args[2]));
- break;
- case INDEX_op_divu_i64:
- tcg_out32(s, DIVDU | TAB(args[0], args[1], args[2]));
- break;
-
- case INDEX_op_qemu_ld_i32:
- tcg_out_qemu_ld(s, args, false);
- break;
- case INDEX_op_qemu_ld_i64:
- tcg_out_qemu_ld(s, args, true);
- break;
- case INDEX_op_qemu_st_i32:
- tcg_out_qemu_st(s, args, false);
- break;
- case INDEX_op_qemu_st_i64:
- tcg_out_qemu_st(s, args, true);
- break;
-
- case INDEX_op_ext8s_i32:
- case INDEX_op_ext8s_i64:
- c = EXTSB;
- goto gen_ext;
- case INDEX_op_ext16s_i32:
- case INDEX_op_ext16s_i64:
- c = EXTSH;
- goto gen_ext;
- case INDEX_op_ext32s_i64:
- c = EXTSW;
- goto gen_ext;
- gen_ext:
- tcg_out32(s, c | RS(args[1]) | RA(args[0]));
- break;
-
- case INDEX_op_setcond_i32:
- tcg_out_setcond(s, TCG_TYPE_I32, args[3], args[0], args[1], args[2],
- const_args[2]);
- break;
- case INDEX_op_setcond_i64:
- tcg_out_setcond(s, TCG_TYPE_I64, args[3], args[0], args[1], args[2],
- const_args[2]);
- break;
- case INDEX_op_setcond2_i32:
- tcg_out_setcond2(s, args, const_args);
- break;
-
- case INDEX_op_bswap16_i32:
- case INDEX_op_bswap16_i64:
- a0 = args[0], a1 = args[1];
- /* a1 = abcd */
- if (a0 != a1) {
- /* a0 = (a1 r<< 24) & 0xff # 000c */
- tcg_out_rlw(s, RLWINM, a0, a1, 24, 24, 31);
- /* a0 = (a0 & ~0xff00) | (a1 r<< 8) & 0xff00 # 00dc */
- tcg_out_rlw(s, RLWIMI, a0, a1, 8, 16, 23);
- } else {
- /* r0 = (a1 r<< 8) & 0xff00 # 00d0 */
- tcg_out_rlw(s, RLWINM, TCG_REG_R0, a1, 8, 16, 23);
- /* a0 = (a1 r<< 24) & 0xff # 000c */
- tcg_out_rlw(s, RLWINM, a0, a1, 24, 24, 31);
- /* a0 = a0 | r0 # 00dc */
- tcg_out32(s, OR | SAB(TCG_REG_R0, a0, a0));
- }
- break;
-
- case INDEX_op_bswap32_i32:
- case INDEX_op_bswap32_i64:
- /* Stolen from gcc's builtin_bswap32 */
- a1 = args[1];
- a0 = args[0] == a1 ? TCG_REG_R0 : args[0];
-
- /* a1 = args[1] # abcd */
- /* a0 = rotate_left (a1, 8) # bcda */
- tcg_out_rlw(s, RLWINM, a0, a1, 8, 0, 31);
- /* a0 = (a0 & ~0xff000000) | ((a1 r<< 24) & 0xff000000) # dcda */
- tcg_out_rlw(s, RLWIMI, a0, a1, 24, 0, 7);
- /* a0 = (a0 & ~0x0000ff00) | ((a1 r<< 24) & 0x0000ff00) # dcba */
- tcg_out_rlw(s, RLWIMI, a0, a1, 24, 16, 23);
-
- if (a0 == TCG_REG_R0) {
- tcg_out_mov(s, TCG_TYPE_REG, args[0], a0);
- }
- break;
-
- case INDEX_op_bswap64_i64:
- a0 = args[0], a1 = args[1], a2 = TCG_REG_R0;
- if (a0 == a1) {
- a0 = TCG_REG_R0;
- a2 = a1;
- }
-
- /* a1 = # abcd efgh */
- /* a0 = rl32(a1, 8) # 0000 fghe */
- tcg_out_rlw(s, RLWINM, a0, a1, 8, 0, 31);
- /* a0 = dep(a0, rl32(a1, 24), 0xff000000) # 0000 hghe */
- tcg_out_rlw(s, RLWIMI, a0, a1, 24, 0, 7);
- /* a0 = dep(a0, rl32(a1, 24), 0x0000ff00) # 0000 hgfe */
- tcg_out_rlw(s, RLWIMI, a0, a1, 24, 16, 23);
-
- /* a0 = rl64(a0, 32) # hgfe 0000 */
- /* a2 = rl64(a1, 32) # efgh abcd */
- tcg_out_rld(s, RLDICL, a0, a0, 32, 0);
- tcg_out_rld(s, RLDICL, a2, a1, 32, 0);
-
- /* a0 = dep(a0, rl32(a2, 8), 0xffffffff) # hgfe bcda */
- tcg_out_rlw(s, RLWIMI, a0, a2, 8, 0, 31);
- /* a0 = dep(a0, rl32(a2, 24), 0xff000000) # hgfe dcda */
- tcg_out_rlw(s, RLWIMI, a0, a2, 24, 0, 7);
- /* a0 = dep(a0, rl32(a2, 24), 0x0000ff00) # hgfe dcba */
- tcg_out_rlw(s, RLWIMI, a0, a2, 24, 16, 23);
-
- if (a0 == 0) {
- tcg_out_mov(s, TCG_TYPE_REG, args[0], a0);
- }
- break;
-
- case INDEX_op_deposit_i32:
- if (const_args[2]) {
- uint32_t mask = ((2u << (args[4] - 1)) - 1) << args[3];
- tcg_out_andi32(s, args[0], args[0], ~mask);
- } else {
- tcg_out_rlw(s, RLWIMI, args[0], args[2], args[3],
- 32 - args[3] - args[4], 31 - args[3]);
- }
- break;
- case INDEX_op_deposit_i64:
- if (const_args[2]) {
- uint64_t mask = ((2ull << (args[4] - 1)) - 1) << args[3];
- tcg_out_andi64(s, args[0], args[0], ~mask);
- } else {
- tcg_out_rld(s, RLDIMI, args[0], args[2], args[3],
- 64 - args[3] - args[4]);
- }
- break;
-
- case INDEX_op_movcond_i32:
- tcg_out_movcond(s, TCG_TYPE_I32, args[5], args[0], args[1], args[2],
- args[3], args[4], const_args[2]);
- break;
- case INDEX_op_movcond_i64:
- tcg_out_movcond(s, TCG_TYPE_I64, args[5], args[0], args[1], args[2],
- args[3], args[4], const_args[2]);
- break;
-
-#if TCG_TARGET_REG_BITS == 64
- case INDEX_op_add2_i64:
-#else
- case INDEX_op_add2_i32:
-#endif
- /* Note that the CA bit is defined based on the word size of the
- environment. So in 64-bit mode it's always carry-out of bit 63.
- The fallback code using deposit works just as well for 32-bit. */
- a0 = args[0], a1 = args[1];
- if (a0 == args[3] || (!const_args[5] && a0 == args[5])) {
- a0 = TCG_REG_R0;
- }
- if (const_args[4]) {
- tcg_out32(s, ADDIC | TAI(a0, args[2], args[4]));
- } else {
- tcg_out32(s, ADDC | TAB(a0, args[2], args[4]));
- }
- if (const_args[5]) {
- tcg_out32(s, (args[5] ? ADDME : ADDZE) | RT(a1) | RA(args[3]));
- } else {
- tcg_out32(s, ADDE | TAB(a1, args[3], args[5]));
- }
- if (a0 != args[0]) {
- tcg_out_mov(s, TCG_TYPE_REG, args[0], a0);
- }
- break;
-
-#if TCG_TARGET_REG_BITS == 64
- case INDEX_op_sub2_i64:
-#else
- case INDEX_op_sub2_i32:
-#endif
- a0 = args[0], a1 = args[1];
- if (a0 == args[5] || (!const_args[3] && a0 == args[3])) {
- a0 = TCG_REG_R0;
- }
- if (const_args[2]) {
- tcg_out32(s, SUBFIC | TAI(a0, args[4], args[2]));
- } else {
- tcg_out32(s, SUBFC | TAB(a0, args[4], args[2]));
- }
- if (const_args[3]) {
- tcg_out32(s, (args[3] ? SUBFME : SUBFZE) | RT(a1) | RA(args[5]));
- } else {
- tcg_out32(s, SUBFE | TAB(a1, args[5], args[3]));
- }
- if (a0 != args[0]) {
- tcg_out_mov(s, TCG_TYPE_REG, args[0], a0);
- }
- break;
-
- case INDEX_op_muluh_i32:
- tcg_out32(s, MULHWU | TAB(args[0], args[1], args[2]));
- break;
- case INDEX_op_mulsh_i32:
- tcg_out32(s, MULHW | TAB(args[0], args[1], args[2]));
- break;
- case INDEX_op_muluh_i64:
- tcg_out32(s, MULHDU | TAB(args[0], args[1], args[2]));
- break;
- case INDEX_op_mulsh_i64:
- tcg_out32(s, MULHD | TAB(args[0], args[1], args[2]));
- break;
-
- case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
- case INDEX_op_mov_i64:
- case INDEX_op_movi_i32: /* Always emitted via tcg_out_movi. */
- case INDEX_op_movi_i64:
- case INDEX_op_call: /* Always emitted via tcg_out_call. */
- default:
- tcg_abort();
- }
-}
-
-static const TCGTargetOpDef ppc_op_defs[] = {
- { INDEX_op_exit_tb, { } },
- { INDEX_op_goto_tb, { } },
- { INDEX_op_br, { } },
-
- { INDEX_op_ld8u_i32, { "r", "r" } },
- { INDEX_op_ld8s_i32, { "r", "r" } },
- { INDEX_op_ld16u_i32, { "r", "r" } },
- { INDEX_op_ld16s_i32, { "r", "r" } },
- { INDEX_op_ld_i32, { "r", "r" } },
-
- { INDEX_op_st8_i32, { "r", "r" } },
- { INDEX_op_st16_i32, { "r", "r" } },
- { INDEX_op_st_i32, { "r", "r" } },
-
- { INDEX_op_add_i32, { "r", "r", "ri" } },
- { INDEX_op_mul_i32, { "r", "r", "rI" } },
- { INDEX_op_div_i32, { "r", "r", "r" } },
- { INDEX_op_divu_i32, { "r", "r", "r" } },
- { INDEX_op_sub_i32, { "r", "rI", "ri" } },
- { INDEX_op_and_i32, { "r", "r", "ri" } },
- { INDEX_op_or_i32, { "r", "r", "ri" } },
- { INDEX_op_xor_i32, { "r", "r", "ri" } },
- { INDEX_op_andc_i32, { "r", "r", "ri" } },
- { INDEX_op_orc_i32, { "r", "r", "ri" } },
- { INDEX_op_eqv_i32, { "r", "r", "ri" } },
- { INDEX_op_nand_i32, { "r", "r", "r" } },
- { INDEX_op_nor_i32, { "r", "r", "r" } },
-
- { INDEX_op_shl_i32, { "r", "r", "ri" } },
- { INDEX_op_shr_i32, { "r", "r", "ri" } },
- { INDEX_op_sar_i32, { "r", "r", "ri" } },
- { INDEX_op_rotl_i32, { "r", "r", "ri" } },
- { INDEX_op_rotr_i32, { "r", "r", "ri" } },
-
- { INDEX_op_neg_i32, { "r", "r" } },
- { INDEX_op_not_i32, { "r", "r" } },
- { INDEX_op_ext8s_i32, { "r", "r" } },
- { INDEX_op_ext16s_i32, { "r", "r" } },
- { INDEX_op_bswap16_i32, { "r", "r" } },
- { INDEX_op_bswap32_i32, { "r", "r" } },
-
- { INDEX_op_brcond_i32, { "r", "ri" } },
- { INDEX_op_setcond_i32, { "r", "r", "ri" } },
- { INDEX_op_movcond_i32, { "r", "r", "ri", "rZ", "rZ" } },
-
- { INDEX_op_deposit_i32, { "r", "0", "rZ" } },
-
- { INDEX_op_muluh_i32, { "r", "r", "r" } },
- { INDEX_op_mulsh_i32, { "r", "r", "r" } },
-
-#if TCG_TARGET_REG_BITS == 64
- { INDEX_op_ld8u_i64, { "r", "r" } },
- { INDEX_op_ld8s_i64, { "r", "r" } },
- { INDEX_op_ld16u_i64, { "r", "r" } },
- { INDEX_op_ld16s_i64, { "r", "r" } },
- { INDEX_op_ld32u_i64, { "r", "r" } },
- { INDEX_op_ld32s_i64, { "r", "r" } },
- { INDEX_op_ld_i64, { "r", "r" } },
-
- { INDEX_op_st8_i64, { "r", "r" } },
- { INDEX_op_st16_i64, { "r", "r" } },
- { INDEX_op_st32_i64, { "r", "r" } },
- { INDEX_op_st_i64, { "r", "r" } },
-
- { INDEX_op_add_i64, { "r", "r", "rT" } },
- { INDEX_op_sub_i64, { "r", "rI", "rT" } },
- { INDEX_op_and_i64, { "r", "r", "ri" } },
- { INDEX_op_or_i64, { "r", "r", "rU" } },
- { INDEX_op_xor_i64, { "r", "r", "rU" } },
- { INDEX_op_andc_i64, { "r", "r", "ri" } },
- { INDEX_op_orc_i64, { "r", "r", "r" } },
- { INDEX_op_eqv_i64, { "r", "r", "r" } },
- { INDEX_op_nand_i64, { "r", "r", "r" } },
- { INDEX_op_nor_i64, { "r", "r", "r" } },
-
- { INDEX_op_shl_i64, { "r", "r", "ri" } },
- { INDEX_op_shr_i64, { "r", "r", "ri" } },
- { INDEX_op_sar_i64, { "r", "r", "ri" } },
- { INDEX_op_rotl_i64, { "r", "r", "ri" } },
- { INDEX_op_rotr_i64, { "r", "r", "ri" } },
-
- { INDEX_op_mul_i64, { "r", "r", "rI" } },
- { INDEX_op_div_i64, { "r", "r", "r" } },
- { INDEX_op_divu_i64, { "r", "r", "r" } },
-
- { INDEX_op_neg_i64, { "r", "r" } },
- { INDEX_op_not_i64, { "r", "r" } },
- { INDEX_op_ext8s_i64, { "r", "r" } },
- { INDEX_op_ext16s_i64, { "r", "r" } },
- { INDEX_op_ext32s_i64, { "r", "r" } },
- { INDEX_op_bswap16_i64, { "r", "r" } },
- { INDEX_op_bswap32_i64, { "r", "r" } },
- { INDEX_op_bswap64_i64, { "r", "r" } },
-
- { INDEX_op_brcond_i64, { "r", "ri" } },
- { INDEX_op_setcond_i64, { "r", "r", "ri" } },
- { INDEX_op_movcond_i64, { "r", "r", "ri", "rZ", "rZ" } },
-
- { INDEX_op_deposit_i64, { "r", "0", "rZ" } },
-
- { INDEX_op_mulsh_i64, { "r", "r", "r" } },
- { INDEX_op_muluh_i64, { "r", "r", "r" } },
-#endif
-
-#if TCG_TARGET_REG_BITS == 32
- { INDEX_op_brcond2_i32, { "r", "r", "ri", "ri" } },
- { INDEX_op_setcond2_i32, { "r", "r", "r", "ri", "ri" } },
-#endif
-
-#if TCG_TARGET_REG_BITS == 64
- { INDEX_op_add2_i64, { "r", "r", "r", "r", "rI", "rZM" } },
- { INDEX_op_sub2_i64, { "r", "r", "rI", "rZM", "r", "r" } },
-#else
- { INDEX_op_add2_i32, { "r", "r", "r", "r", "rI", "rZM" } },
- { INDEX_op_sub2_i32, { "r", "r", "rI", "rZM", "r", "r" } },
-#endif
-
-#if TCG_TARGET_REG_BITS == 64
- { INDEX_op_qemu_ld_i32, { "r", "L" } },
- { INDEX_op_qemu_st_i32, { "S", "S" } },
- { INDEX_op_qemu_ld_i64, { "r", "L" } },
- { INDEX_op_qemu_st_i64, { "S", "S" } },
-#elif TARGET_LONG_BITS == 32
- { INDEX_op_qemu_ld_i32, { "r", "L" } },
- { INDEX_op_qemu_st_i32, { "S", "S" } },
- { INDEX_op_qemu_ld_i64, { "L", "L", "L" } },
- { INDEX_op_qemu_st_i64, { "S", "S", "S" } },
-#else
- { INDEX_op_qemu_ld_i32, { "r", "L", "L" } },
- { INDEX_op_qemu_st_i32, { "S", "S", "S" } },
- { INDEX_op_qemu_ld_i64, { "L", "L", "L", "L" } },
- { INDEX_op_qemu_st_i64, { "S", "S", "S", "S" } },
-#endif
-
- { -1 },
-};
-
-static void tcg_target_init(TCGContext *s)
-{
- unsigned long hwcap = qemu_getauxval(AT_HWCAP);
- if (hwcap & PPC_FEATURE_ARCH_2_06) {
- have_isa_2_06 = true;
- }
-
- tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff);
- tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff);
- tcg_regset_set32(tcg_target_call_clobber_regs, 0,
- (1 << TCG_REG_R0) |
- (1 << TCG_REG_R2) |
- (1 << TCG_REG_R3) |
- (1 << TCG_REG_R4) |
- (1 << TCG_REG_R5) |
- (1 << TCG_REG_R6) |
- (1 << TCG_REG_R7) |
- (1 << TCG_REG_R8) |
- (1 << TCG_REG_R9) |
- (1 << TCG_REG_R10) |
- (1 << TCG_REG_R11) |
- (1 << TCG_REG_R12));
-
- tcg_regset_clear(s->reserved_regs);
- tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0); /* tcg temp */
- tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1); /* stack pointer */
-#if defined(_CALL_SYSV)
- tcg_regset_set_reg(s->reserved_regs, TCG_REG_R2); /* toc pointer */
-#endif
-#if defined(_CALL_SYSV) || TCG_TARGET_REG_BITS == 64
- tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13); /* thread pointer */
-#endif
- tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP1); /* mem temp */
- if (USE_REG_RA) {
- tcg_regset_set_reg(s->reserved_regs, TCG_REG_RA); /* return addr */
- }
-
- tcg_add_target_add_op_defs(ppc_op_defs);
-}
-
-#ifdef __ELF__
-typedef struct {
- DebugFrameCIE cie;
- DebugFrameFDEHeader fde;
- uint8_t fde_def_cfa[4];
- uint8_t fde_reg_ofs[ARRAY_SIZE(tcg_target_callee_save_regs) * 2 + 3];
-} DebugFrame;
-
-/* We're expecting a 2 byte uleb128 encoded value. */
-QEMU_BUILD_BUG_ON(FRAME_SIZE >= (1 << 14));
-
-#if TCG_TARGET_REG_BITS == 64
-# define ELF_HOST_MACHINE EM_PPC64
-#else
-# define ELF_HOST_MACHINE EM_PPC
-#endif
-
-static DebugFrame debug_frame = {
- .cie.len = sizeof(DebugFrameCIE)-4, /* length after .len member */
- .cie.id = -1,
- .cie.version = 1,
- .cie.code_align = 1,
- .cie.data_align = (-SZR & 0x7f), /* sleb128 -SZR */
- .cie.return_column = 65,
-
- /* Total FDE size does not include the "len" member. */
- .fde.len = sizeof(DebugFrame) - offsetof(DebugFrame, fde.cie_offset),
-
- .fde_def_cfa = {
- 12, TCG_REG_R1, /* DW_CFA_def_cfa r1, ... */
- (FRAME_SIZE & 0x7f) | 0x80, /* ... uleb128 FRAME_SIZE */
- (FRAME_SIZE >> 7)
- },
- .fde_reg_ofs = {
- /* DW_CFA_offset_extended_sf, lr, LR_OFFSET */
- 0x11, 65, (LR_OFFSET / -SZR) & 0x7f,
- }
-};
-
-void tcg_register_jit(void *buf, size_t buf_size)
-{
- uint8_t *p = &debug_frame.fde_reg_ofs[3];
- int i;
-
- for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i, p += 2) {
- p[0] = 0x80 + tcg_target_callee_save_regs[i];
- p[1] = (FRAME_SIZE - (REG_SAVE_BOT + i * SZR)) / SZR;
- }
-
- debug_frame.fde.func_start = (uintptr_t)buf;
- debug_frame.fde.func_len = buf_size;
-
- tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame));
-}
-#endif /* __ELF__ */
-
-static size_t dcache_bsize = 16;
-static size_t icache_bsize = 16;
-
-void flush_icache_range(uintptr_t start, uintptr_t stop)
-{
- uintptr_t p, start1, stop1;
- size_t dsize = dcache_bsize;
- size_t isize = icache_bsize;
-
- start1 = start & ~(dsize - 1);
- stop1 = (stop + dsize - 1) & ~(dsize - 1);
- for (p = start1; p < stop1; p += dsize) {
- asm volatile ("dcbst 0,%0" : : "r"(p) : "memory");
- }
- asm volatile ("sync" : : : "memory");
-
- start &= start & ~(isize - 1);
- stop1 = (stop + isize - 1) & ~(isize - 1);
- for (p = start1; p < stop1; p += isize) {
- asm volatile ("icbi 0,%0" : : "r"(p) : "memory");
- }
- asm volatile ("sync" : : : "memory");
- asm volatile ("isync" : : : "memory");
-}
-
-#if defined _AIX
-#include <sys/systemcfg.h>
-
-static void __attribute__((constructor)) tcg_cache_init(void)
-{
- icache_bsize = _system_configuration.icache_line;
- dcache_bsize = _system_configuration.dcache_line;
-}
-
-#elif defined __linux__
-static void __attribute__((constructor)) tcg_cache_init(void)
-{
- unsigned long dsize = qemu_getauxval(AT_DCACHEBSIZE);
- unsigned long isize = qemu_getauxval(AT_ICACHEBSIZE);
-
- if (dsize == 0 || isize == 0) {
- if (dsize == 0) {
- fprintf(stderr, "getauxval AT_DCACHEBSIZE failed\n");
- }
- if (isize == 0) {
- fprintf(stderr, "getauxval AT_ICACHEBSIZE failed\n");
- }
- exit(1);
- }
- dcache_bsize = dsize;
- icache_bsize = isize;
-}
-
-#elif defined __APPLE__
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/sysctl.h>
-
-static void __attribute__((constructor)) tcg_cache_init(void)
-{
- size_t len;
- unsigned cacheline;
- int name[2] = { CTL_HW, HW_CACHELINE };
-
- len = sizeof(cacheline);
- if (sysctl(name, 2, &cacheline, &len, NULL, 0)) {
- perror("sysctl CTL_HW HW_CACHELINE failed");
- exit(1);
- }
- dcache_bsize = cacheline;
- icache_bsize = cacheline;
-}
-
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/sysctl.h>
-
-static void __attribute__((constructor)) tcg_cache_init(void)
-{
- size_t len = 4;
- unsigned cacheline;
-
- if (sysctlbyname ("machdep.cacheline_size", &cacheline, &len, NULL, 0)) {
- fprintf(stderr, "sysctlbyname machdep.cacheline_size failed: %s\n",
- strerror(errno));
- exit(1);
- }
- dcache_bsize = cacheline;
- icache_bsize = cacheline;
-}
-#endif
Code Review / kvmfornfv.git / blobdiff